Having gone thru the Dash Cam Wars for some time now and buying a few. I have found that the GS1000 is the worst of the bunch. There are a lot of counterfeit ones on the market and I got one.
My next try was a
DVR-207 it was not much better, the pictures in the ad seem to show a large screen but it is only 1 1/2 IN square very small compared to the G1W.
If you read
Dash Cam Talk you will see that the G1W is the best rated for the low priced ones. It has a large screen,2.5 by 1.5 in a much larger screen that is easier to see when setting up. The set up on it is easier than the others with easy to follow instructions.
This seller is where I got my last one and is fast and reliable and has the highest rating that I have found.
I have had great luck with mine and have had no problems with over 200 hours of recording. The picture is great and quality is much better than all the others that I have used, for the price it cant be beat.
HERE is an older thread that talks about Dash Cams that may be helpful.
Good Luck